public    void COMBO_ARRANGE(JComboBox combo){
               Vector<String>  nam = new Vector<String>();
               
                        for (int i = 0; i < combo.getItemCount(); i++) { nam.add(combo.getItemAt(i).toString());   }
                    Collections.sort(nam);
                    DefaultComboBoxModel cbxModel = new DefaultComboBoxModel(nam);
                    combo.setModel(cbxModel);
                    }